Numerical Simulation of the Impact of Diaphragm Wall Construction on Adjacent Tunnels

DOI

10.2991/978-94-6239-682-1_24How to use a DOI?

Keywords

Diaphragm wall; Tunnel deformation; Numerical simulation; Gaussian distribution; Construction factors

Abstract

To investigate the impact of diaphragm wall construction on adjacent tunnels, numerical simulations were conducted using Plaxis 3D finite element software based on relevant engineering cases. A bilinear model was employed to simulate the trench wall pressure, and two different constitutive models were applied to analyze the influence of diaphragm wall construction on the horizontal displacement and settlement of the tunnel. The effects of various construction factors, such as the distance between the tunnel and the diaphragm wall, the excavation depth of the diaphragm wall, and the trench excavation method, were quantified. The results indicate that the horizontal and vertical displacements of the tunnel are most significant during the concrete pouring stage, and the horizontal deformation data closely follow a Gaussian distribution. The horizontal and vertical displacements of the tunnel are positively correlated with the depth of the diaphragm wall and negatively correlated with the horizontal distance between the tunnel and the diaphragm wall. Furthermore, the segmented excavation method can reduce the impact on adjacent tunnels. The findings provide theoretical references and numerical methods for evaluating the influence of diaphragm wall construction on the deformation of adjacent subway tunnels.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Shimin Zhang
AU  - Yang Lyu
AU  - Tonghua Wang
AU  - Guiying Huang
AU  - Jinhong Zhang
PY  - 2026
DA  - 2026/06/30
TI  - Numerical Simulation of the Impact of Diaphragm Wall Construction on Adjacent Tunnels
BT  - Proceedings of the 2025 7th International Conference on Civil Architecture and Urban Engineering (ICCAUE 2025)
PB  - Atlantis Press
SP  - 243
EP  - 256
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6239-682-1_24
DO  - 10.2991/978-94-6239-682-1_24
ID  - Zhang2026
ER  -